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Finding the Fourth Proportional to 647,288.11, 970,258.53 and 362,561.23

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Solution

The fourth proportional to 647,288.11, 970,258.53 and 362,561.23 is: 543,464.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,288.11 : 970,258.53 = 362,561.23 : x
  2. Step 2: Convert to fraction form
    647,288.11/970,258.53 = 362,561.23/x
  3. Step 3: Cross multiply
    647,288.11x = 970,258.53 × 362,561.23
  4. Step 4: Simplify right side
    647,288.11x = 351,778,121,203.50
  5. Step 5: Solve for x
    x = 351,778,121,203.50/647,288.11
  6. Step 6: Final answer
    x = 543,464.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.